noun
expression
ik-SPRESH-un/ɪkˈspreʃn/
A form that conveys a thought, feeling, or meaning.
The raised eyebrows and small smile form an expression of delighted surprise.

Etymology
Originally an action of “pressing out,” expression came to mean manifesting a feeling or putting something into words. The name then extended to the meaningful act, phrase, or facial look itself.
In context
His expression was agitated, and he raised a hand to scratch his scalp.
More examples
- His puzzled expression tells me he doesn't understand.
- The expression "break the ice" means to help people feel comfortable.
- The mathematical expression 3 + 5 represents a sum.
Forms
expression · expressions
express verb — To convey a thought, feeling, or meaning.
expressive adjective — Clearly showing a person's feelings or ideas.
Similar words
- gesture
- Specifically a movement or action that communicates something.
- phrase
- Specifically a group of words, not a look or action.
- manifestation
- Emphasizes visible evidence of an underlying feeling or quality.